Apparatus for cementing dents in reed-ribs.



N0. 642,950. Patented Feb. 6, 1900. L. C. BALDWIN. APPARATUS FORCEMENTING DENIS IN REED RIBS.

(Application led Sept. 15, 1897.)

(,NU Modal.)

NVENTDR :fwd/adam we Qnms Farms co, Mmmm@ Mwwnmm o r STATES LUTHER C.BALDIVIN, OF MANCHESTER, NEW HAMPSHIRE.

APPARATUS FOR CEMENTING DENTS IN REED-RIBS.

SPECIFICATION forming part of Letters Patent No. 642,950, dated February6, 1900.

Application filed September 15J 1897. Serial No. 651,733. (No model.)

T0 @ZZ whom, t may con/067%:

Be it known thatI, LUTHER O. BALDWIN, of Manchester, State of NewHampshire, have invented certain Improvements in Apparatus for OemcntingDents in Reed-Ribs, of which the following, read in connection with theaccompanying drawing, is a specification.

The invention has for its object an apparatus for use in cementing dentsin reed-ribs, whereby the cement shall be introduced into the chamber ofthe reed-rib and thoroughly intermingled with the dents and made to fillthe spaces therebetween in a compact mass, touching and sustaining eachand every dent.

The invention consists in the matters hereinafter described, andreferred to in the appended claims.

The accompanying drawing shows in sectional elevation the apparatus Ihave employed in carrying out this invention as it is shown in thepresent instance.

This apparatus comprises a tank 2, having the chamber 3, into which thecement material is introduced through a suitable opening covered by thecap 4. Outside of the tank 2 is a jacket 5, having steam-chamber 6. Atthe top of chamber 6 is an inlet controlled by stopcock 7, wherethroughsteam from any suitable source may be introducedto the chamber 6 andthereinrallowed to circulate about and heat to a molten state the cementmaterial located in the tank 2. l ber 6 is an outlet suitably controlledby stopcock 8 for withdrawing the liquid of steam condensed .in thechamber 6. At or n'ear the top end of tank 2 is aconnection suitablycontrolled by stop-cock 9, wherethrough steam is introducable from thechamber 6 into the chamber of tank 2 for acting upon the top of themolten mass of cement. At the bottom of tank 2 is aconnection suitablycontrolled by stop-cock 10, wherethrough the molten cement in conductedinto the chamber of a reed-rib suitably placed at the open end thereof.

It will be understood that the reed-rib is formed of parts d b, whichare concaved or suitably hollowed, whereby when placed together isformed a chamber extending from end to end thereof. Thedents beingplaced therebetween Ware spaced and wound with At the bottom ofchamtwine material, all this in the customary and well known manner. Thereed-rib is then pressed tightly against the connection 12, its chamberbeing suitably in communication with the conduit of said connection 12.The cock lO is operated to open the conduit,where upon the cement byreason of the pressure developed from the steam acting upon the moltenmass above moves rapidly along into andthrough the chamber of thereed-rib while in the superheated, and consequentlyliqueed,state,whichinsures the complete filling of the reed-rib chamber and all spacesintermediate the dents, after which the reed-rib is removed and thecement is allowed to set and harden by cooling.

I use cement of pitch and tar in the ordinary proportions, but othercement materials may be employed, if desired.-

It should be observed that the steam introduced to the chamber or tank 2should be dry, so as not to undesirably intermix with the cementmaterial by condensing therein. For this reason I have placed the inleton top of chamber 6 and provided exhaust for condensed steam throughstopcock S, whereby the dryness of the steam is suitably maintained atall times.

The pressure of the steam from above upon the moltenvmass of cement maybe varied to a degree; but to insure rapid flow of the molten cementthrough the reed-rib chamber without liability of the cement becomingunduly hardened by cooling and also to insure the desired pressurethereof at all places I have found it preferable to use a steam-pressureof sixty-five pounds and upward.

Instead of the dry steam being employed as I have herein described itmay be employed in other forms of apparatus suitably adapted therefor,and obviously, too, other means of steam or air or any suitable agentmaybe employed to develop the required pressure. I do not thereforelimit myself; but

I claim- K l.. An apparatus of the nature indicated, comprising areceptacle for the cementing agent and provided with a seat upon whichthe end of the reed-rib frame rests, an outlet from said receptacleopening through said seat and means for forcing the cementing agent fromthe receptacle through the seat into the tubes of the reed-rib frame;substantially as described.

2. An apparatus of the nature indicated, comprising a receptacle for thecementing agent and provided with a seat formed to support and close theends of the reed-rib frame, au outlet from said receptacle openingthrough said scat, and means for forcing the cementing agent from thereceptacle through the seat into the tubes of the reed-rib frame;substantially as described.

3. An apparatus of the nature indicated comprising a receptacleforacementing agent, and provided with a seat upon which the end of thereed-rib frame rests, a casing in proximity to said receptacle whereby achamber is formed between the wall of the casing and the wail of thereceptacle, an outlet from said receptacle, an inlet for a fluid underpressure LUTHER C. BALD VIN.

Witnesses:

ARTHUR A. HALE, FRANK E. ANDREWS.

